Petr Hora

Title: Innovations by Petr Hora in Aircraft Propeller Technology

Introduction

Petr Hora is a notable inventor based in West Chester, Ohio, who has made significant contributions to the field of aircraft technology. With a total of six patents to his name, he has developed innovative systems that enhance the performance and control of aircraft propellers.

Latest Patents

One of Petr Hora's latest patents is the "Aircraft pitch change mechanism." This invention discloses a system for changing the pitch in aircraft propfans, utilizing a motor located at a stationary position to adjust the pitch of the blades through a gear train. The system features a feather brake that can override the motor, driving the blades toward feather. Additionally, a unison brake prevents pitch from undergoing excursions toward fine pitch when propeller speed exceeds a limit. Notably, the motor remains non-rotating in the absence of pitch change, and a pair of such systems can be employed in a counter-rotating propfan system to independently change the pitch of the propfans.

Another significant invention is the "Propeller pitch control." This system controls the pitch of aircraft propeller blades using a hydraulic motor. The propeller blades are designed without feather-inducing counterweights. An overspeed governor detects when the propeller speed exceeds a limit and takes control of the hydraulic motor, driving the blades toward a coarsened pitch position to reduce the propeller speed. In an alternative form of this invention, a mechanical brake can override the hydraulic motor, mechanically retarding a rotating gear to move the propeller blades toward a coarsened pitch.

Career Highlights

Petr Hora is currently employed at General Electric Company, where he continues to innovate and develop advanced technologies in the aerospace sector. His work has significantly impacted the efficiency and safety of aircraft operations.

Collaborations

Petr has collaborated with esteemed colleagues, including Edwin K. Miller and David Edward Bulman, contributing to the advancement of aircraft technology through teamwork and shared expertise.

Conclusion

Petr Hora's innovative patents and contributions to aircraft propeller technology demonstrate his commitment to enhancing aviation safety and performance. His work at General Electric Company and collaborations with fellow inventors highlight the importance of teamwork in driving technological advancements.